My Goodyear Sea Bee 25hp is a big twin in tire store drag. It has been completely rebuilt inside and out. Thus it is the best running outboard I own and very reliable.
However I still run it 24:1 with oil. Why?
Longevity.
Spark plugs is cheap…Pistons ain’t. And as stated above, eventually…tho probably not in my lifetime…there will be a shortage of these power heads or the parts for them.
But I’d predict that there is a much greater likelihood that 2-cycles will be banned from running on public water long before that day comes.
Greg